牙齿拔除
牙齿拔除-
方法：对上颌牙齿拔除、种植牙、肿瘤等需要显示上颌窦与上颌后牙区关系的患者，进行颌面专用CT扫描和重建成像。
Methods : Maxillofacial CT scan and secondary reconstruction were performed in the diagnosis of patients who needed to estimate the relation between maxillary sinus and molar .
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一旦牙齿由于某种原因拔除，则牙槽骨的宽度和高度随即发生变化，逐渐萎缩。
Once the tooth was extracted , the width and height of alveolar bone will atrophia gradually .